Synthesis of gallium bearing magnetic particles from aqueous solution: influence of mixing procedure of initial solution and the ratio of Ga/Fe
文献类型：期刊论文
| 作者 | Wang, Jing1,2; Deng, Tong2; Yang, Cai-Qin1; Wang, Wei1 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2008-02-14 |
| 卷号 | 450期号:1-2页码:276-283 |
| 关键词 | gallium-bearing magnetite aerial oxidation mixing procedure Mossbauer |
| ISSN号 | 0925-8388 |
| 其他题名 | J. Alloy. Compd. |
| 中文摘要 | Gallium-bearing magnetite particles were synthesized by aerial oxidation of alkaline suspension containing both ferrous and gallium ions. It was found that the mixing procedure and temperature were critical in the preparation of ferrite particles without the formation of alpha-FeOOH (ferric oxyhydroxide), non-spherical particles and amorphous phase, evidenced by characterization of SEM and XRD. On the other band, the concentration of Ga3+ entry into the structure of spinel was different with the mixing procedure and temperature. Single phase of spinel gallium-bearing magnetites were precipitated at the temperature from 25 to 90 degrees C in the C procedure in which the neutralization of Ga was performed firstly, but the concentration of Ga entry into spinel of magnetites decreased with the temperature increasing. While in the procedure D in which neutralization of Fe ions was performed firstly, single phase of spinel gallium-bearing magnetites were precipitated only at the temperature above 65 degrees C, and the content of gallium precipitated into the magnetites increased with the temperature. Mossbauer analysis and magnetic characteristic were used to investigate the cation distribution of the gallium bearing ferrites with different ratio of Ga3+/Fe2+, which showed small content gallium introduction to have entered the tetrahedral sites preferentially rather than the octahedral sites, and increasing gallium introduction to have located between octahedral and tetrahedral sites. (c) 2007 Elsevier B.V. All rights reserved. |
| 英文摘要 | Gallium-bearing magnetite particles were synthesized by aerial oxidation of alkaline suspension containing both ferrous and gallium ions. It was found that the mixing procedure and temperature were critical in the preparation of ferrite particles without the formation of alpha-FeOOH (ferric oxyhydroxide), non-spherical particles and amorphous phase, evidenced by characterization of SEM and XRD. On the other band, the concentration of Ga3+ entry into the structure of spinel was different with the mixing procedure and temperature. Single phase of spinel gallium-bearing magnetites were precipitated at the temperature from 25 to 90 degrees C in the C procedure in which the neutralization of Ga was performed firstly, but the concentration of Ga entry into spinel of magnetites decreased with the temperature increasing. While in the procedure D in which neutralization of Fe ions was performed firstly, single phase of spinel gallium-bearing magnetites were precipitated only at the temperature above 65 degrees C, and the content of gallium precipitated into the magnetites increased with the temperature. Mossbauer analysis and magnetic characteristic were used to investigate the cation distribution of the gallium bearing ferrites with different ratio of Ga3+/Fe2+, which showed small content gallium introduction to have entered the tetrahedral sites preferentially rather than the octahedral sites, and increasing gallium introduction to have located between octahedral and tetrahedral sites. (c) 2007 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | DIRECT PRECIPITATION ; LOW-TEMPERATURE ; SPINEL ; ZNGA2O4 ; 90-DEGREES-C ; MECHANISM ; GROWTH ; OXIDE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000252860900047 |
| 公开日期 | 2013-10-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/2859]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Hebei Med Univ, Sch Pharmaceut Sci, Shijiazhuang 050017, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jing,Deng, Tong,Yang, Cai-Qin,et al. Synthesis of gallium bearing magnetic particles from aqueous solution: influence of mixing procedure of initial solution and the ratio of Ga/Fe[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2008,450(1-2):276-283. |
| APA | Wang, Jing,Deng, Tong,Yang, Cai-Qin,&Wang, Wei.(2008).Synthesis of gallium bearing magnetic particles from aqueous solution: influence of mixing procedure of initial solution and the ratio of Ga/Fe.JOURNAL OF ALLOYS AND COMPOUNDS,450(1-2),276-283. |
| MLA | Wang, Jing,et al."Synthesis of gallium bearing magnetic particles from aqueous solution: influence of mixing procedure of initial solution and the ratio of Ga/Fe".JOURNAL OF ALLOYS AND COMPOUNDS 450.1-2(2008):276-283. |
入库方式： OAI收割
来源：过程工程研究所
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